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Europa observatory . . This observatory was put on the northern hemisphere of the Europa moon (In the Sol system) to observe stars and planets closer than 4000 light years. It was built by the Exploriens.
The telescope
An astronaut looking at the pictures from the telescope on a computer screen
A cable going from the tower to the computer
Sonic alert unit.
Note: This was built almost entirely using parts from the Exploriens Nebular Outpost set.